private string PatternAndTransformation(ICanvasRenderingContext2D ctx)
{
// create new image object to use as pattern
IImageData img = new ImageData();
img.src = @"wallpaper.png";
// create pattern
object ptrn = ctx.createPattern(img, "repeat");
ctx.translate(50, 0);
ctx.rotate(Math.PI*2/(6));
ctx.fillStyle = ptrn;
ctx.fillRect(0, 0, 150, 150);
return @"Originals\Images\PatternAndTransformation.png";
}
private string sample21(ICanvasRenderingContext2D ctx)
{
ctx.translate(75, 75);
for (int i = 1; i < 6; i++)
{
// Loop through rings (from inside to out)
ctx.save();
ctx.fillStyle = "rgb(" + (51*i) + "," + (255 - 51*i) + ",255)";
for (int j = 0; j < i*6; j++)
{
// draw individual dots
ctx.rotate((float) Math.PI*2/(i*6));
ctx.beginPath();
ctx.arc(0, i*12.5F, 5, 0, Math.PI*2, true);
ctx.fill();
ctx.commit();
}
ctx.restore();
}
return @"Originals\Transformations\sample21.png";
}
private void drawStar(ICanvasRenderingContext2D ctx, int r)
{
ctx.save();
ctx.beginPath();
ctx.moveTo(r, 0);
for (int i = 0; i < 9; i++)
{
ctx.rotate(Math.PI/5);
if (i%2 == 0)
{
ctx.lineTo((r/0.525731)*0.200811, 0);
}
else
{
ctx.lineTo(r, 0);
}
}
ctx.closePath();
ctx.fill();
ctx.restore();
}